Why chip fabs can’t afford to stop: The hidden cost of a single disruption

In a rare move, South Korean Prime Minister Kim Min-seok intervened in a labor dispute involving nearly 48,000 workers at Samsung Electronics, the world's leading memory chip manufacturer. The workers were poised to embark on an 18-day strike over bonus disagreements, prompting the government to consider emergency mediation if the situation threatened the national economy. This incident underscored the fragility of the global semiconductor supply chain, as any disruption at Samsung's facilities could have widespread repercussions. Fortunately, a crisis was averted when Samsung agreed to allocate 10.5% of its semiconductor operating profit for special bonuses. However, this situation serves as a stark reminder of the unique challenges faced by semiconductor fabs. Unlike traditional factories, semiconductor manufacturing cannot simply pause and restart; it requires continuous operation in meticulously controlled environments. A previous one-day labor action at Samsung had already led to a significant decline in output — a staggering 58% drop in foundry operations and an 18% decrease in memory fabrication during that shift, as noted by independent semiconductor analyst Arun Mampazhy. The implications of such disruptions are profound. Chip fabs involve intricate processes that include up to 1,000 precise steps over extended periods. Interruptions caused by labor disputes, natural disasters, or other crises can irreparably damage silicon wafers, leading to lengthy recovery periods. Experts highlight that while automation plays a crucial role in these facilities, human intervention remains vital throughout the manufacturing process, particularly during quality checks and monitoring. Challenges escalate in the face of natural disasters. For instance, severe earthquakes can inflict mechanical damage on wafer fab equipment and disrupt critical support functions, affecting the entire supply chain. Danish Faruqui of Fab Economics warns that even infrastructure beneath the fabs can suffer damage, leading to significant downtime for repairs. The complexity of restarting a semiconductor fab is often comparable to keeping it operational. Recovery timelines can vary greatly depending on the cause and severity of the disruption. Following a major earthquake in Taiwan in 2024, chipmakers managed to restore about 70% of affected tools within just 10 hours. However, a fire at a Renesas facility took over three months for recovery, while Samsung's Austin fab was offline for nearly a month due to winter storms. The type of technology being produced also influences recovery duration and costs. For instance, a worker strike at a 28nm fab could extend the return-to-production timeline by two weeks, whereas a similar disruption at a 3nm fab could stretch this timeline to four to six weeks, incurring significantly higher costs. The ramifications of such delays extend beyond the factory itself. Delayed chip shipments can lead to postponed product launches and idle assembly lines, ultimately affecting market opportunities. Historical precedents demonstrate the financial impact, such as the $550 million revenue decrease for Taiwan Semiconductor Manufacturing Company (TSMC) due to a contamination issue in 2019. As India gears up to enter the semiconductor manufacturing arena with initiatives like Tata Electronics' new fab in Dholera, the lessons learned from such disruptions become increasingly critical. Industry experts emphasize the need for strategic planning and operational discipline to mitigate the impact of inevitable disruptions. Beyond establishing backup power and disaster recovery systems, India must cultivate a robust ecosystem for semiconductor manufacturing. This includes developing a skilled workforce, ensuring stable labor relations, and fostering local supply chains for essential materials and equipment. Faruqui emphasizes the importance of enhancing supply chain resilience and vertical integration to minimize reliance on specific geographies or suppliers. While the recent labor dispute at Samsung ended without a major shutdown, it serves as a sobering reminder of the realities of semiconductor manufacturing and the potential challenges that lie ahead.